Dual purpose sewing machine



Dec. 22, 1953 H. SCHAPER 2,663,607

DUAL PURPOSE SEWING MACHINE Filed Aug. 18, 1949 4 SheetsSheet l Inventor:

Dec. 22, 1953 HHHHHHH ER 2,663,607

DUAL PURPOSE SEWING MACHINE 4 Inventor.-

Dec. 22, 1953 H. SCHAPER DUAL PURPOSE SEWING MACHINE 4 Sheets-Sheet 3 Filed Aug. 18, 1949 Inventor":

Patented Dec. 22,1953

Hans Sohapen Bielefeld, Germany, assignor to Anker-Werke, A. G., Bielefeld, Germany, a corporation of Germany Application Angust 18, 19i 9, Serial No. 111,061

; Claims prioritmapplic ation 1 The invention relates to portable sewing ma.- chines that are also suitable for darning and similar work. i Sewing machines have been equipped with a special arm for carrying the material whenthe machine is used for darning or like mending work, the special arm extending above the machine base. This requires a machine housing of a rather complicated and costly design as well as a correspond" ing increase in weight which is especially disagreeable with machines of the portable type. It is an object of the invention to provide a portable sewing machine which can readily be converted for darning and similar work while avoiding the above-mentioned disadvantages. .A

further object of the invention is to devise a portable suitcase-type machine that is readily applicable for sewing or darning on sleeves, trousers, stockings and other hose-shaped goods'as well as for various similar work heretofore requiring the use of a heavier, arm-type machine.

In order to achieve these objects, and-inacoordance with a feature of the invention, the base of a sewing machine unit is displaceablyilinked with a hollow bottom member of a carrying-case, so that the base; can be raised out of the hollow of the bottom member to an overhanging position in which the base may serve as a material-carrying arm when the machine is to be used for darning or the like.

These and more specific objects and features will be apparent from the embodiment of the invention exemplified by the'drawing inwhich:

Figure 1 shows a perspective view of the closed carrying case of a sewing machine, V

Fig. 2 a perspective view .of theupper part of the case, I

Fig. 3, the same machine with the case opened and the machine set for sewing, and w Fig. 4 the same machinaopened andset 'for damning- I, Y.

The carrying case of the illustrated machine, when closed, has the general shape and appearance of a suitcase. Its bottom portion I is hollow and has two side panels 2, 3 hinged thereto. Side panel 3 is subdivided by another hinge 4. When the case is closed, the side panels are held in position by a substantially U-shaped cover portion which is composed of two parts 5, 6 hinged together at I and equipped with a grip 8. Two lugs 9 of part 5 engage respective slots ll! of the bottom portion I when the casing is closed. A lock it in bottom portion i and engageable with part 5 permits locking the closed casing.

The hollow of bottom portion I accommodates ctober 1,"l'9 l.8 I V 6 Claims. (01. 312---20s)' Germany 1 the base portion l2 of the sewing machine unit proper. When the case is opened and set for sewmg, as shown in Fig. 3, the work surface of the base portion I2 is flush with a plate It hinged to the bottom portion l at one of the short edges of that portion. The side panels then serve as a convenient extension of the working surface.

Another plate It is hinged to the bottom portion at the other short edge. The machine base i2 18 movably connected with the bottom A of the casing by four links I which are disposed at the long sides of the elongated bottom portion and form together a parallel motion device that permits lifting the machine unit while maintaining the working surface horizontal. The base portion -12 is shorter than the bottom'portion i, and the plate l3 covers the remaining space between base The space beneath plate l3 and hence beneath the "needle is now free so that the material, hoisery or other apparel to be mended can pass underneath the darning area.

If it is desired to'place the machine as close as possible to'the body of the operator, the machine can be placed'close to the edge of the table so that the hinged part of side panel 3 drops into the position shown in Fig. 4. 5

Itjwill be apparent to those skilled in the art thatthe inventionpermits of various modiiioa: tions without departure from its essential features set forth in the claims annexed hereto.

I claim:

1. A portable sewing machine, comprising a carrying case having an elongated hollow bottom member and two side panels hinged "to the long upper edges respectively of said member, a machine unit having a base portion normally disposed in the hollow of said member and shorter than said member, said base portion having a working surface normally substantially flush with said upper edges and spaced from one or theshort edges of said member, link means interconnecting said member and said base portion to permit moving said base portion into a raised position out of said member and over said one short edge, and two plates hinged to said bottom member at its two respective narrow edges, one of said plates normally covering the space between said base portion and said one short edge, and said other plate being movable to cover the space between the other short edge and said base portion when said unit is in said raised position so as to secure said unit in said position.

2. A portable sewing machine, comprising a carrying case having an elongated hollow bottom member and lateral dropleaf panels hinged to said member at the longitudinal upper edges;

thereof, a machine unit having a base normally disposed in the hollow of said bottom member and having a material-supporting working area normally substantially flush with said edges link means movably connecting said base with said bottom member to permit shifting said unit to a position in which said base is raised out of said bottom member, said area projecting over a short upper edge of said bottom member and project ing upwardly and laterally out of the range of said panels when said unit. is in said position, said base having a shorter length than said hol low and being longitudinally spaced from said short upper edge of said bottom member when disposed in said hollow, and said base being longitudinally spaced from the other shortjupper edge of said bottom member when said base is in said raised position, and two plates hinged along said two short upper edges respectively of said bottom member and being selectively movable into engagement with said base.

3. A portable sewing machine, comprising a carrying case having an elongated hollow bottom member and a plate hinged to said bottom memher at one of the two short upper edges thereof, a sewing machine unit having a base shorter than said bottom member and normally disposed in the. hollow of said member and close to said one short upper edge, said base having a back portion at the side of said plate and having a. material-supporting frontportion at the. opposite side, links pivotally secured to, said base and to said bottom member atthe long sides of said bottom member to permit raising said base out of said bottom member to a position where saidfront portion projects over the other short upper edge of said bottom member, and said plate, being engageable with said back portion of said. base when said base is in said raised position-to. then secure said base in said position.

4. A portable sewing machine, comprising a carrying case having a bottom member forming an upwardly open rectangular box; structure, a Sewing machine unit havin a. rectan ular bas of a length shorter than the interior length of said box structure and ofa width nearlymatching the interior width of said box structure, said base having a height approximately equal to, the inner height of said box structure and having a, top

4 surface with a material-supporting front portion at one longitudinal end, link members disposed on the two longitudinal sides of said base and located within said box structure, said link members being pivotally joined with said box structure and with said baseto, permit shifting said base between normal and raised positions relative to said box structure, said machine unit being operatively accessible for general sewing work and having said base seated within said box structure when said base is in said normal position, and said base being outside said box structure. and. h ving said front portion longitudinally project over said box structure when in said raised position, whereby said machine unit is set, for darning and hose work when said base in said raised position.

5. A portable sewing machine, comprising a carrying case having a hollow bottom member, a machine unit having a base with a working surface on its. top, members. pivotall-y joined with said, bottom member and, said as 2 P mit shifting said base between normal and raised positions relative to said bottom member, said base being seated within the hollow of said bot,- tom member when; in said normal position, and said base being outside, Said hollow and having a front portion longitudinally. projecting over said bottom member when insaid ra ed p i i n, said carrying case comprising two drop leaf panels hinged to. the two longitudinal upper edges of said bottom, member and form ng an. extens on f said. working surtace wh n sa d: base, is in. said normal position,- said panels, being movable, upwardly against said machine, unit. for closing said case, a removable U-shaped cover forming the front, rear and top walls of said case and being engageable with said panels when said panels are m v pwardly; said. cover hav ng po i oning lugs, engageable. wi h, said bottom member and being lockable with said bot om me r.

6. In a portable; sewing machine according; to claim 5; said cover having; two substa ntiall rigid parts hin d together ac o sthet p w l al ahinge axis transversetosaid bottom m mber.

HANS SCHAPER.

References Cited in the file ofv thisv patent 

